公开(公告)号：US20130070770A1

公开(公告)日：2013-03-21

申请号：US13674924

申请日：2012-11-12

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Min ZHA ,  Ting ZOU ,  Qian ZHOU ,  Jing HUANG

IPC: H04L12/56

CPC classification number: H04L45/741 ,  H04L12/4633 ,  H04L12/4641 ,  H04L12/66 ,  H04L29/12367 ,  H04L29/12481 ,  H04L29/12575 ,  H04L29/12971 ,  H04L45/52 ,  H04L61/2514 ,  H04L61/2557 ,  H04L61/2592 ,  H04L61/6086

Abstract: The embodiments of the present invention provide a method, a device, and a system for forwarding a packet. The method includes: receiving an IPv6 packet sent by a gateway, and obtaining a flow label of the IPv6 packet, where the flow label of the IPv6 packet is corresponding to a link identity of customer premise equipment in one-to-one correspondence; decapsulating the IPv6 packet; performing network address translation on a decapsulated packet according to the flow label; and forwarding the decapsulated packet according to a translated network address. When multiple links between the gateway and an AFTR are corresponding to the same tunnel for network address translation, in the case that IP addresses of terminal users are overlapping or are the same, different terminal users can be distinguished, so that a terminal user that sends a packet can receive feedback, thus improving customer satisfaction.

Abstract translation: 本发明的实施例提供了一种用于转发分组的方法，设备和系统。 该方法包括：接收网关发送的IPv6报文，获取IPv6报文的流标签，IPv6报文的流标签按照一对一对应的客户端设备的链路标识; 解封装IPv6数据包; 根据流标签在解封装的分组上执行网络地址转换; 并根据翻译的网络地址转发解封装的分组。 当网关和AFTR之间的多个链路对应于相同的网络地址转换隧道时，在终端用户的IP地址重叠或相同的情况下，可以区分不同的终端用户，使得发送的终端用户 数据包可以接收反馈，从而提高客户满意度。